The enzymes of the Krebs (or citric acid) cycle are located in the inner membrane of the mitochondria
a. true
b. false
Answer: b. false
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The cell membranes of wall-less archaeons are strengthened by ________.
A. pseudomurein B. diglycerol tetraethers C. glycoprotein or protein layers D. diglycerol ethers
Some asteroids show evidence of surface activity such as lava flows
a. True b. False Indicate whether the statement is true or false
N-fixing bacteria
What will be an ideal response?
In cells that are constantly involved in secretion, an equivalent amount of membrane must be returned
to the interior of the cell for each vesicle that fuses with the plasma membrane; if this does not occur, then what would happen? a. The ratio of cell surface would decrease, compared to cell volume. b. The cell surface would shrivel. c. The surface area would remain constant. d. The number of membrane receptor proteins would decrease. e. The cell surface will keep expand